一级日本牲交大片好爽在线看,18禁裸乳无遮挡自慰直播网站,自拍偷区亚洲网友综合图片,看骚逼Tv,Com,天天干天天屌天天草,五月激情六月丁香,欧美熟妇vdeoslisa18

Scientific researchers promote environmental protection in China's Dongting Lake

Source: Xinhua| 2018-12-20 19:03:40|Editor: Li Xia
Video PlayerClose

CHINA-HUNAN-DONGTING LAKE-ENVIROMENT PROTECTION

Zhang Siqi (L) and Zou Yeai, scientific staff members, set infrared monitoring camera in Dongting Lake area, central China's Hunan Province, Oct. 24, 2018. Collecting soil in spring, testing lake water in summer, investigating plants in autumn and observing migrant birds in winter outlined nearly ten years of seasonal cycle daily life of nameless scientific researchers in the Dongting Lake area. They have worked hard to supply solutions to protection of the environment and biological diversity here. The scientific researchers from the Chinese Academy of Sciences (CAS) were praised as the doctors of Dongting Lake wetland. In order to supply scientific support for ecological remediation of Dongting Lake, the CAS established an observation and research center in Dongting Lake wetland. As the second-largest freshwater lake in China, Dongting Lake played an important role in maintaining ecological balance of the Yangtze River valley and also was an important habitat for migrant birds, milu deer, finless porpoise and etc. The ecology system of Dongting Lake faced environmental deterioration once upon a time due to various reasons, and had been improved year by year due to measures taken by local government. According to an investigation in January 2018, over 226,000 migrant birds spent the winter in Dongting Lake, up 23 percent from a year earlier. (Xinhua/Chen Zeguo)

   Prev 1 2 3 4 5 6 7 8 9 10 Next   >>|

KEY WORDS: Hunan
EXPLORE XINHUANET
010020070750000000000000011100001376875411